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ITsVISTA KB-Link: KB968440

When set to manual, TrustedInstaller service fails to install updates

After beginning an update process, the updates are not installed. An event such as the following may be logged:

Log Name:      System
Source:        Microsoft-Windows-WindowsUpdateClient
Date:          01.08.2008 13:04:34
Event ID:      20
Task Category: Windows Update Agent
Level:         Error
Keywords:      Installation,Installation
User:          SYSTEM
Computer:      
Description:
Installation Failure: Windows failed to install the following update with error 0x8000ffff: Update for Windows (KB943729).

When you review ComputerName_SoftDistReportingEvents.LOG, you may find the following:

{64C0C2FD-AE33-41B4-B489-A1B52ECE5667} 2008-06-20 11:58:30:215+0200 1 182 101 {8FB23541-BD3F-4E49-A693-4FB12C81F2B3} 501 80242014 wusa Failure Content Install Installation Failure: Windows failed to install the following update with error 0×80242014: Update for Windows (KB941693).

For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB968440.

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